摘要
以陕西省丹凤县滑坡为研究对象,通过搜集地质资料与野外调查获取区域基础地质信息,借助ArcGIS技术手段提取地质信息,建立信息量模型揭示地质信息与滑坡发生概率之间的内在联系,开展丹凤县滑坡易发性评价研究。通过野外实地考察,将区内滑坡划分为历史滑坡与滑坡隐患,建立各自的滑坡属性数据库;分别采用主成分分析法与皮尔森相关系数法对历史滑坡影响因素进行遴选,建立研究区滑坡评价因子指标分级体系;以历史滑坡数据为基础,建立信息量模型,绘制研究区滑坡易发性评价区划图,并采用滑坡隐患数据检验评价结果的准确性。研究对丹凤县滑坡的综合防控具有一定的参考价值。
Taking the landslide in Danfeng County,Shaanxi Province as the research object,the basic geological information of the area was obtained through the collection of geological data and field surveys,and the geological information was extracted with the help of ArcGIS technology.Evaluation of the susceptibility of landslides in Danfeng County.Through field investigations,the landslides in the area were divided into historical landslides and landslide hidden dangers,and their respective landslide attribute databases were established;the principal component analysis method and Pearson correlation coefficient method were used to select historical landslide influence factors,and the landslide evaluation factors in the study area were established Index grading system;it was based on historical landslide data,establish an information model,drew a zoning map of landslide susceptibility evaluation in the study area,and used landslide hidden danger data to test the accuracy of the evaluation results.The research had certain reference value for the comprehensive prevention and control of landslides in Danfeng County.
作者
田凡凡
薛喜成
郭有金
Tian Fanfan;Xue Xicheng;Guo Youjin(College of Geology and Environment,Xi′an University of Science and Technology,Xi′an 710054,China)
出处
《能源与环保》
2021年第8期6-12,24,共8页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
国家自然科学基金(41702298)。
关键词
丹凤县滑坡
主成分分析
皮尔森相关系数
信息量模型
易发性分区图
Danfeng County landslide
principal component analysis
Pearson correlation coefficient
information model
zoning map of susceptibility
